2291575440 has 240 divisors, whose sum is σ = 8924678784. Its totient is φ = 476129280.

The previous prime is 2291575439. The next prime is 2291575453. The reversal of 2291575440 is 445751922.

It is a tau number, because it is divible by the number of its divisors (240).

It is a super-2 number, since 2×2291575440² = 10502635994422387200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 197644 + ... + 208916.

Almost surely, 2^2291575440 is an apocalyptic number.

2291575440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2291575440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4462339392).

2291575440 is an abundant number, since it is smaller than the sum of its proper divisors (6633103344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2291575440 is a wasteful number, since it uses less digits than its factorization.

2291575440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11318 (or 11301 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 2291575440 is about 47870.4025468765. The cubic root of 2291575440 is about 1318.3924875905.

The spelling of 2291575440 in words is "two billion, two hundred ninety-one million, five hundred seventy-five thousand, four hundred forty".